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Decay of solutions to the Maxwell equation on the Schwarzschild background

L. Andersson ; Thomas Bäckdahl (Institutionen för matematiska vetenskaper) ; P. Blue
Classical and Quantum Gravity (0264-9381). Vol. 33 (2016), 8,
[Artikel, refereegranskad vetenskaplig]

A new Morawetz or integrated local energy decay estimate for Maxwell test fields on the exterior of a Schwarzschild black hole spacetime is proved. The proof makes use of a new superenergy tensor H-ab defined in terms of the Maxwell field and its first derivatives. The superenergy tensor, although not conserved, yields a conserved higher order energy current H-ab (partial derivative(t))(b). The tensor Hab vanishes for the static Coulomb field, and the Morawetz estimate proved here therefore yields integrated decay for the Maxwell field to the Coulomb solution on the Schwarzschild exterior.

Nyckelord: Maxwell equation, Schwarzschild, energy estimate, Morawetz estimate, rotating black hole, kerr spacetime, wave-equation, energy, field, spin, perturbations, manifolds, geometry, tensors

Denna post skapades 2016-05-31. Senast ändrad 2016-06-02.
CPL Pubid: 237120


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